Case



March 9,1926. 1,576,412

W. H. B. CRONK CASE Filed April 4, 1925 3 Sheets-Sheet 1 Wake/war: H 5.(rank INVENTQR ATTOR N EY March 9 1926. 1,576,412

W. H. B. CRONK CASE I Filod April 4, 1925 3 Sheets-Sheet 2 INVENTORATTORNEY March 9,1926. 1,576,412

W. H. B. CRONK CASE Filed April 4 1925 5 Sheets-Sheet 3 Maire/r2471 H5.[fa/7 6 r I BY My W ATTORN EY Patented Mar. 9, 1926.

UNITED STATES WAKEMAN H; B. CRONK, OF KANSAS CITY, MISSOURI.

CASE.

Application filed April 4, 1925.

To all whom it may concern: 7

Be it known that I, NAKEMAN H. B. CRoNK, a citizen of the United States,residing at Kansas City, in the county of Jackson and State of Missouri,have invented new and useful Improvements in Cases, of which thefollowing is a specification.

This'invent-ion relates to a map or chart case, the general object ofthe invention being to provide means for supporting a pluralityof maps,charts or the like in a case so that they are protected from dust andthe like, with means for bringing the desired chart or map to a positionwhere it can be drawn from the case.

Another object of the invention is to place each chart or map on aspring roller so that it can be kept in wound condition when not in use.

Another object of the invention is to provide a blackboard on thesupporting part of the case, with means for permitting the board to beturned so that either face can be used. 7

This invention also consists in certain other features of constructionand in the combination and arrangement of the several parts, to behereinafter fully described,-

illustrated in the accompanying drawings and specifically pointed out inthe appended claim. 1

In describing my invention in detail, reference will be had to theaccompanying drawings wherein like characters denote like orcorresponding parts throughout the several views, and in which:

Figure 1 is a perspective view of the invention.

Figure 2 is a rear elevation with parts.

removed.

Figure 3 is a section on line 33 of Figure 2.

Figure 4 is a fragmentary section on line 4- 1-01? Figure 3.

Figure 5 is a sectional detail view through a portion of the frame andshowing one of the stops 18 for holding the blackboard against movement.

In these views, 1 indicates an upright supporting frame which hascasters 2 on its base portions and is formed with a casing 3 at its top.The bottom of the casing is provided with an opening 4: and a shaft- 5passes through the casing. Discs 6 are fastened to the shaft and arearranged adja cent the ends of the casing. A plurality of Serial No.20,793.

spring rollers 7 have their pintles engaging holes in the discs so thatthe rollers are rotatably supported by the discs and the sheets 8,containing the maps or charts or the like, are carried by these rollers.Each sheet has a handle 9 at its outer end which will extend through theopening at in the casing when the reel formed by the shaft anddiscs isturned to a position where a roller is above the opening. This willpermit the handle to be grasped and the map or chart unrolled so that itcan be observed. The handles are preferably formed of yokeshape withrollers forming the handle parts with the bottom of the case slopingfrom each side towards the center so that the rollers-on the handleswill travel down one sloping portion to the opening and up the othersloping portion when leaving the opening. A pulley 10 is fastened to theprojecting end ofthe shaft 5 and a cable 11 passes over this pulley andover a pulley 12 which is provided with a crank handle 13 at the side ofthe support so that the shaft can be easily rotated by a person standingat one side of the supporting frame. A dial 1% containing numbersindicating the number of rolls in the case is arranged on one end of thecase and an arrow 15 is fastened to the pulley 10 and cooperates withthis dial to indicate which map or chart is in a position to be unrolledthrough the opening 4:.

A flat surface is carried by the supporting frame and forms a rest forthe maps or charts when in unrolled position and I prefer to form aportion of this frame by a double faced blackboard 16 which is mountedto rotate about a horizontal axis through means of the pintles 17 at thesides of the board engaging portions of the frame. This board is held invertical position by the stops 18 arranged on the pulleys 19 mounted onthe stub shafts 20 carried by the supporting frame and these pulleys aremanipulated to cause the stops to engage and disengage the blackboardthrough means of a cable 21 which has a portion wrapped around eachpulley and which passes over the guiding pulleys 22 on the frame and islooped around a pulley 23 at one edge of the frame to which a handle 24is attached. Thus by raising and lowering the handle 24 the cable ismoved to rotate the pulleys 19 to swing the stops upwardly out ofengagement with the blackboard, to permit the blackboard to be moved, asin dotted lines in Figure l or to cause said stops to engage "theblackboard to hold it against movement. The handle 24 is arrangedadjacent thehandle .13 .so that both the blackboard and the map carryingreel can be moved from one side of the device. A lamp 25 may be fastenedto a part of the frame for illuminating thema'psan'd blackboard.

From the foregoing it will beiseen that I have 'provided'a simple devicefor supporting a plurality of maps, chartsandthe like, in rolled upcondition and :covered :so that they will be kept free of dust,'WithJmeans whereby the reel can be turned to permit the desired .map orchart 'to be unrolled. from its roller. The map will rest against theflat-surface formed in part by the blackboard so that it Will bekeptiniflat condition 'While being used. After the map has be'en .usedit is simply necessary to give it :a slight jerk'to oause'the spring inits roller-to Wind it :up upon its roller. When the maps are not beingused the blackboard can be used and the blackboard can be adjusted sothat either side can be brought into use.

combination and arrangement of the several parts, provided that suchchanges fall Within ithescopeoftheappended claim.

What I claim is A device of the class described comprising anupright'iframe, a casing at the'upper-end thereof, .a shaft passingthrough 'the casing, apair of discs onthe shaft \vithinithe casing,

spring rollers carried by the discs, :sheets rolled upon the rollers,handles at theouter ends of the sheets, the casing having an opening inits bottom through which the handle of the lowermost sheet will project,

.a pulley on the outer end of the shaft, :a

hand operated pulley on the frame, a cable passing over the pulleys, .affinger ion "the pulley on the shaft anda dial on the casing with whichtlie finger cooperates .toiindicate the position of the'rolls in thecase.

- In itestimony whereof I a'flix :my 'signatu re.

WVAKEMAN B. 'CRQNsK.

